| Type: | Bishop |
| Honorific-Prefix: | Most Reverend |
| John Brenan | |
| Archbishop of Cashel | |
| Church: | Catholic Church |
| Archdiocese: | Archdiocesep of Cashel |
| Term: | 1677–1693 |
| Predecessor: | William Burgat |
| Successor: | Edward Comerford |
| Consecration: | 6 September 1671 |
| Consecrated By: | Francesco Maria Brancaccio |
| Death Date: | 1693 |
| Death Place: | Cashel, County Tipperary, Ireland |
| Previous Post: | Bishop of Waterford and Lismore (1671–1677) |
John Brenan (died 1693) was a Roman Catholic prelate who served as Archbishop of Cashel (1677–1693) and Bishop of Waterford and Lismore (1671–1677).[1] [2] [3]
On 19 August 1671, John Brenan was appointed during the papacy of Pope Clement X as Bishop of Waterford and Lismore.On 6 September 1671, he was consecrated bishop by Francesco Maria Brancaccio, Cardinal-Bishop of Porto e Santa Rufina, with Stefano Brancaccio, Bishop of Viterbo e Tuscania, and Federico Baldeschi Colonna, Titular Archbishop of Caesarea in Cappadocia, serving as co-consecrators. On 8 March 1677, he was appointed during the papacy of Pope Innocent XI as Archbishop of Cashel.He served as Archbishop of Cashel until his death in 1693. While bishop, he was the principal consecrator of James Dowley, Bishop of Limerick (1679); and the principal co-consecrator of Thaddeus Keogh, Bishop of Clonfert (1671).